Chimney-flue



(No Model.)

J. B. BARNEY & S. B. BRYAR.

CHIMNEY FLUE.

No. 396,458. Patented Jan. 22', 1889.

Q? m, (016 22, Li Z UNITE STATES ATENT OFFICE.

JAMES B. BARNEY AND SAMUEL B. BRYAR, OF PITTTSBURG, PENNSYLVANIA.

CHIMNEY-FLIUE.

SPECIFICATION forming part of Letters Patent No. 396,458, dated January22, 1889. Application filed July 9, 1888- Serial No. 279,460. (Nomodel.)

To all whom it may concern: 1 Be it known that we, JAMES B. BARNE Y andSAMUEL B. BEYAR, citizens of the United 4 States, residing atPit-tsbnrg, in the county of l Allegheny and State of Pennsylvania, haveinf vented certain new and useful Improvements 1 in Chimney-Flues; andwe do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it pertains to make and use the same, reference being hadto the accompanying drawings, which form a part of this specification.

Our invention relates to an improved safety chimney-flue; and itconsists of the novel construction and combination of parts, as will befully described hereinafter.

In the accompanying drawings, Figure 1 is a front sectional elevation ofan ordinary chimney, showing the fire-places and fiues leading therefromconstructed according to our invention. Fig. 2 is a sectional elevationof the top or finish of the same. Fig. 3 is a sectional plan view of oneof the fines. Fig. 4 is a side sectional elevation of our improvedchimney-flue and fire-place.

To put our invention into practice, we con.- struct at the rear and ateach end of a fireplace, a, an air-space, 1), into which cold air may beadmitted through an ordinary register, 0, set into the side wall of thechimney d. On the top of each fire-place a is a cap or connection, 6,having an air-space,f, surrounding the same, and a reduced circular'neckat the top for the purpose of connecting the same to the refractoryflue-liners 9. These liners g we prefer to be circular in cross-see tionand provided at one end with a bowl, h, for the purpose of making asubstantial eonnection,the one with the other. At regular intervalsalong the entire length of these liners g are outwardly-projectingbricks 7?, which serve to rigidly hold the same in position, leaving acontinuous space, 7;, from the commencement of the flue g to the top ofthe chimney d, at which point an opening, Z, is formed, provided with anoverhanging cap, at, which prevents rain from entering the space 7.1. Byreference to Fig. 1 0n the drawings it will be seen that all theseair-spaces are interconnnunieating and constructed in a manner that willenable a current of cold air to circulate freely about the flue-linersg, and

thereby prevent the same from burning out or being seriously injuredfrom excessive heat.

It is also obvious that in this construction of a chimney the dangerfrom defective fines is avoided. The fire from the flue-liner q, if thesame is broken, must first cross the space 71''? and then find adefective place in the side walls of the chimney (I, which is almostimpossible.

Having thus described our invention, what we claim, and desire to secureby Letters Patent, is

1. A chimney having a series of fire-places, a, each surrounded by anair-space, Z), which communicates with the exterior surroundingatmosphere by openings 0, a separate vertical flue for each fire-place,which fines are arranged in different Vertical planes and communicatewith the air-space Z), a hood, 6, placed over each fireplace and havinga contracted exit which terminates in the ,lower end of the verticalline, and the flue-liners g, housed within said fines and communicatingwith the hoods e, the flue-liners being of less diameter than the flues,to leave an intermediate air-space, 7t, substantially as and for thepurpose described.

2. A chimney having a series of fire-places, a, each surrounded by anair-space, b, which communicates with the surrounding atmosphere, aseries of vertical fines, one of which is provided for each fire-placeand communieating with the air-space 1) thereof, the connecting-fines f,intermediate of the vertical fiues, a hood, 6, placed over eachfire-place and having a contracted exit terminating in the lower end ofthe vertical flue, and a flueliner, g, provided in each vertical flue,to leave an intermediate fLl1-SP&C6,71J, and connected with thecontracted exit of the hood 6, the upper end of the vertical fluescommunicatin g with the surrounding atmosphere by openings Z, which areprotected by depending curved hoods m, substantially as and for thepurpose described.

In testimony that we claim, the foregoing we hereunto affiX oursignatures, this 19th day of June, A. D. 1888.

- JAMES B. BABNEY. [L. s.

SAMUEL B. BRYAR. [L. S. In presence of M. E. HARRISON, C. 0. LEE.

